Conformity Certification under Method 5 | Production Process Evaluation

Method 5 is among the most widely used conformity assessment approaches in Vietnam, especially applied to products requiring strict quality control such as clothing, construction materials, animal feed, etc. In this article, ExtendMax provides a detailed guide on the conformity certification process under Method 5 according to current regulations.

1. Definition of Conformity Certification under Method 5

Conformity certification under Method 5 is defined in Circular 28/2012/TT-BKHCN issued by the Ministry of Science and Technology. This method includes evaluating the quality management system and production process combined with typical sample testing. It is commonly applied to mass-produced products to ensure consistency and compliance with the National Technical Regulation (QCVN).

>>> See also: Conformity Certification under Method 7 | A-to-Z Process Consultation

2. Definition of Production Process

A production process is a set of systematic technological steps and actions aimed at transforming raw materials into finished products. In Method 5 certification, controlling the production process is a core factor to ensure that product quality consistently meets the QCVN throughout the production cycle.

>>> See also: Conformity Certification for IT Products | Comprehensive – Professional Service

3. Products and Goods Subject to Method 5 Certification

• Products or goods that may become unstable during production or may be altered during transportation and market circulation;
• Types of products or goods that pose potential harm or safety and health risks to humans, animals, or the environment;
• Products that are specifically designed for clear identification and classification.

Should IT devices be certified under Method 5?

Based on ExtendMax's experience, conformity certification for IT equipment under Method 5 is relatively challenging. Companies often lack adequate preparation for assessment documentation. Currently, the TQC certification body under the Authority of Telecommunications only supports Method 5 certification for domestically produced goods.

>>> See also: Detailed Guide for Applying for a Processing License for Used IT Goods

4. Method 5 Certification Process

Method 5 involves typical sample testing and production process evaluation; monitoring is done via sample testing taken from the production site or the market, combined with production process assessment.

Steps in the certification process:

1. Product manufacturing
2. Preparation of conformity certification documents
3. Submission of application to a designated certification body
4. Certification body conducts Method 5 assessment
5. Issuance of the Certificate of Conformity
6. Declaration of conformity
7. Ongoing surveillance during the certificate’s validity

5. Steps in Method 5 Certification Evaluation

Step 1: Preliminary evaluation of technical documents and quality system

The certification body reviews the conformity dossier and the manufacturer's quality management documents. If the manufacturer already applies ISO 9001, ISO 13485, IATF 16949, or equivalent, the evaluation follows these standards.

Step 2: Factory audit

Evaluation of the production process at the manufacturing site, including:

a. Control of technical documentation (design, technical specifications);
b. Control of the entire production chain, from input materials to packaging and distribution;
c. Quality control of raw materials, semi-finished, and finished products;
d. Control of production equipment and testing tools;
đ. Evaluation of worker and technician competency;
e. Additional aspects like training and management.

Step 3: Sample collection for testing

After the process audit, the certification body selects typical product samples. These samples must represent a specific type/design and be made from the same materials under the same conditions. Samples are randomly chosen from warehouse stock or newly manufactured batches.

Step 4: Sample conformity testing

Testing is performed at designated or legally recognized laboratories, or those under mutual recognition agreements (MRAs). Tests include functional, safety, and reliability parameters as per applicable technical regulations.

Step 5: Compliance check between standards and test results

The certification body reviews the sample test results and compares them with relevant standards or regulations. Production process assessment results are also compared with prior set requirements.

Step 6: Conclusion on conformity

A product is deemed compliant if it satisfies two conditions:

a. All sample test criteria meet the limits specified in the applicable standards/regulations;
b. The production process meets assessment requirements.

The conclusion remains valid for up to three years, subject to annual surveillance every 9–12 months.

Step 7: Surveillance evaluation

During the validity of the conformity conclusion, products must undergo ongoing assessment via additional sample testing and production audits. Surveillance must occur at least once every 12 months. Based on the results, the certificate may be maintained, suspended, or revoked.

6. Validity of the Conformity Certificate under Method 5

Typically, the certificate is valid for 3 years, provided the company maintains its quality management system and undergoes periodic surveillance or upon request by the relevant authority. The validity begins from the date of issuance based on the assessment results.

7. Benefits of Method 5 Certification

• Ensures product meets technical standards with consistent quality
• Enhances company reputation with partners and consumers
• Facilitates customs clearance for imported goods
• Serves as a foundation for tenders or market expansion
• Ensures legal compliance regarding product quality
• Reduces legal risks and penalties related to non-compliance

>>> See also: Import Goods Quality Inspection  | Latest Procedures

8. Limitations of Method 5 Certification

• Higher initial evaluation and testing costs
• Requires a stable and well-documented quality management system
• Demands close coordination between technical and production departments
• Involves many personnel and time-consuming preparations

9. Key Considerations for Method 5 Certification

• Choose an accredited and designated certification body
• Prepare complete documentation on processes, products, and quality systems
• Regularly update changes in relevant technical regulations
• Keep conformity evidence throughout the certificate’s validity
• Publicly declare conformity after receiving the certificate

10. Trends in Method 5 Certification

With increasing integration and quality demands, more businesses are opting for Method 5 to demonstrate product control capabilities. In the construction material sector especially, Method 5 is gradually becoming a mandatory requirement for certain imported products.

Method 5 certification is an appropriate choice for businesses seeking structured, efficient, and long-term compliance. With the support of professional organizations like ExtendMax, the certification process becomes easier, faster, and more cost-effective.